Shock-absorber



' P. HIEN.

SHOCK ABSORBER.

APPLICATION FILED NOV.19, 1914.

7 1,338,371, I Paten'm-fi A333; 1920.

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I NrrEn'sTATEs PAT OF PHILLIP I-IIEliT, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-EIGHTH .TO THOMAS F. $HEBILDAN AND ONE-EIGHTH TO GEORGE L. WILKINSON, BOTH OF CHICAGO,

ILLINOIS.

To all whom it may concern:

Be it known that I, PH1LLIDHIEN, a citizen of the United States, residing at Chicago; in the county of Cook and State of Illinois, have invented certain new and useful Improvements 'in Shock-Absorbers, of

which the following is a specification.

This inventionv relates in general/to vehicle springs, 'and'more particularlyto dethe wheels dropinto rut'sto provide a shock absorber vices for preventing the recoil of such springs. j T

The usual elliptical springs of vehicles, and more particularly of automobiles, which are interposed between and connect the axles with the body, are subjected to severe strains when they recoil after having been abnormally compressedyas, for instance, when stacles.- It is well known that the recoil of such springs results in greater injury to them and greater jolts to the vehicle occui'pants than does the compression of the springs; It is further -well known that when a vehicle carries its normal load the sensitiveness of the sprlngs is so reduced as to dampen their recoil and thereby reduce the jolts which are imparted to the vehicle body. i d

The primary object of my invention is to provide a shock absorber for the elliptical springs of vehicles which will resist the -re-' coil of the springs and thereby reduce the danger of breaking the springs and contribute to the comfort of occupants of the vehicles by eliminating sudden jolts.

A further object of my invention is to provide .hicle springs which desirable compression hereinafter by" reference to the accoinpanying drawings, in which the same is Jillustrated in a convenient and practical form and in which;

Figure 1 is a rear elevational view of an automobile with my invention applied thereto;

or encounter obsaid portions of the rod G pass. of the bar K are supported by nuts Z @Two shock! absorbing devices,

SHOCK-ABSORBER. Specificationof Letters Patent. Patented Apr. 27, 1926.

' Application filed November 19, 1914. Serial No. 873,070.

' 'Fig. 2 is an enlarged sectional view upon line 2- 2 of Fig. 1; and r Fig. 3 is an enlarged elevational View showing my invention and the adjacent portions of a semi-elliptical spring and axle.

The same reference characters are used to designate the same parts in the several figures of the drawings.

-Reference letter A designates the casing forthe rear axle of an automobile supported. at its ends by wheels B and B C indicates a portion'of the body of the automobile which is supported at its rear upon the center of a transverse semi-elliptical spring D. The ends of the semi-elliptical spring D are connected by means of links al and d? with. brackets e and e mounted upon the ends of the axle casing A. a and a designate shackles which surround the leaves of the spring D adjacent its ends.

The automobile construction above described does not in itself constitute my invention but is illustrated in order that the construction and operation of my invention may be clearly understood. It will be evi dent that my invention is not limited in its use to an automobile of the construction above described, but may be applied to elliptical springs in general.

F designates a saddle which extends around the top and sides of the semi-elliptical spring D intermediate the center and one end thereof. The saddle F is provided with a groove in the surfaces at the top and within which is seated a U- sides thereof shaped rod' Gr. The depending portions g and g of the U-shaped rod extend on opposite sidesof the axle casing A and pass through perforated lugs 72, and h on the ends of a yoke H which passes beneath and en ages the axle casing.

urrounding the portions 9 and g of the rod G'which extend below the lugs h and k are coiled springs K and K the lower ends of such springs being supported upon a bar K having holes 'ithrough which the The ends and Z engaging screw threads on the lower ends of the portions 9 and g of the rod G.

such as above described, are preferably provided for each semi-elliptical spring, one of such devices being located at each side of the centhe lugs 71, and it thereof passer ng and or f h Semi-ellit 7 J ccnt shack ly in contact we r 0 er a The manner of applying and o my improved shock absorber, The saddle F is first placed a; l elliptical spring adjacent once. r a or 61?. The U-shaped rod t is then pla around the saddle lland seated n the groo V in. the outer surface thereof. H then placed beneath the axle ,as i i l. upwardly around the depending portions l r the rod G. The springs K and in are then placed around the depending portions of the rod G' and lifted into engagement with the under surfaces of the lugs 72 and h". The bar. K is then engaged with the depending ends of the rod Gr after which the nuts I}. And Z are screwed upon the scrcw'threaded rtions of the rod' G, thereby imparting to springs K and K? the desired tension by sompressingthem between the barK and the h? and k The springs K and K preferably have imparted to them such tension thatthe semiellipticalspringl) Wlll be compressed to the sa me extent as 1t 18 compressed when the've hicle contains its normal load. The sprin are maintained under such tension by means of lock nuts Z engagingthe nuts Z and Z In the operation of my improved shock absorber the compression of the semi-elliptical spring D is not resisted, but the recoil of such spring is dampened by the tension ing through the medium of the rod G. My improved shock absorber, therefore,- protects the semi-elliptical spring from being broken by sudden recoils thereof, and also contrib utes to the comfort of the occupantsof the vehicle by eliminating the sudden jolts Whichwouldotherwise be communicated to' the vehicle body by the unrestricted recoil;

, it has when the vehicle carries its normah of the semi-elliptical springs.

It will be further evident that as my improved shock absorbers impart to the semielliptical spring the same compression that load, the vehicle body is no more subjected when it contains its predetermined load From the foregoing description itwill be olfiserv'ed that I have invented a simple and efficient shock absorber which may be conveniently applied to an automobile, or other I vehicle, and which not only serves to resist my-name.=

sudden. recoils of the vehicle spring, but to retain such spring under predetermined compression so that the vehicle body will at all times be protected from sudden jolts to tlie'same extent as if containing its predete r- -1 The"combination with the elliptical spring of a vehicle, of a U-shaped rod extending around the top of said sprlng'and depending on opposite sides of an axle ofthe vehicle, m eans connected to said axle through which pass the depending portions of said U-shaped rod, and supplemental springs interposed between said'meansand ends of said rod for resisting the movet of the vehicle spring away from the axle. I

3 The combination with the elliptical spring of a vehicle, of a saddle extending around the top and sides of said spring, a

Ushaped rod extending around and seated upon said saddle, means connected to an adj'acent part of the vehicle'through Which the depending portions of said rod freely pass, and supplemental springs "interposed between said part of the vehicle and the ends of the supplemental springs K and K actof said -rod for imposing upon the vehicle spring a predetermined compression'f 3. The combination with the elliptical spring of a vehicle, of a U-shaped rod extending around the top of said spring intermediate of, its ends, the depending end portions of said rod extending on opposite sides 10f an axle of a vehicle, means connected to said axle through which pass the end portions of said U-shaped rod, coil springs surioo rounding the depending portions of said rod I beneath-said means, and means-engaging the depending portions of said U-shaped rod to impart to said supplemental springs a pre determined tension. to sudden jolts when lightly loaded than i "In testimony whereof, I have subscribed "'PHILLiP. HIEN.

Witnessesz I Grno LaWILKINsoN, Hiti iRYA. PARKS. 

